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Why does the Earth have a magnetic field?

A. The Earth contains crust of different composition

B. The Earth has a gravitational force of attraction

C. The Earth contains moving liquid metal

D. The Earth has an orbit around the Sun

E. The Earth does not have a magnetic field



bold = correct answer

Question Identifier: GCI_2011_089
Designed for: Non-Science Majors
Primary Author(s): J. Libarkin, S. Anderson
Contributing Author(s):
Misconception's Reference: Original GCI (https://www.msu.edu/~libarkin/GCI_PUBLICATIONS.html)
Notes: (none)


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